Clean cache and clear data files in google play store and google play
service(application setting) but still problem same.Unable to update or
download any application.Please provide solution. This problem facing
last 2 days, note 8 ... both 2 handset...
in service center handset purchase invoice not needed. service center
can verify ur sim activation date when u using start on device. this
date means ur product purchase date. if u want invoice then u can go
there; where u purchased the device.